/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University. All rights reserved.
 * 
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license; 2) All redistributions in binary form
 * must reproduce the above copyright notice, this list of conditions and the
 * disclaimer listed in this license in the documentation and/or other materials
 * provided with the distribution; 3) Any documentation included with all
 * redistributions must include the following acknowledgement:
 * 
 * "This product includes software developed by the Community Grids Lab. For
 * further information contact the Community Grids Lab at
 * http://communitygrids.iu.edu/."
 * 
 * Alternatively, this acknowledgement may appear in the software itself, and
 * wherever such third-party acknowledgments normally appear.
 * 
 * 4) The name Indiana University or Community Grids Lab or NaradaBrokering,
 * shall not be used to endorse or promote products derived from this software
 * without prior written permission from Indiana University. For written
 * permission, please contact the Advanced Research and Technology Institute
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202. 5) Products
 * derived from this software may not be called NaradaBrokering, nor may Indiana
 * University or Community Grids Lab or NaradaBrokering appear in their name,
 * without prior written permission of ARTI.
 * 
 * 
 * Indiana University provides no reassurances that the source code provided
 * does not infringe the patent or any other intellectual property rights of any
 * other entity. Indiana University disclaims any liability to any recipient for
 * claims brought by any other entity based on infringement of intellectual
 * property rights or otherwise.
 * 
 * LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO
 * WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 * NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF
 * INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS.
 * INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS",
 * "VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.
 * LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR
 * ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION
 * GENERATED USING SOFTWARE.
 */
package cgl.narada.samples.nbNative;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Properties;

import cgl.narada.event.NBEvent;
import cgl.narada.event.TemplateProfileAndSynopsisTypes;
import cgl.narada.matching.Profile;
import cgl.narada.service.ServiceException;
import cgl.narada.service.client.ClientService;
import cgl.narada.service.client.EventConsumer;
import cgl.narada.service.client.EventProducer;
import cgl.narada.service.client.NBEventListener;
import cgl.narada.service.client.SessionService;
import cgl.narada.service.qos.ProducerConstraints;

/**
 * A simple native client of NaradaBrokering with comma-seperated <tag=value> 
 * pairs based subscriptions and content synopisis.
 * 
 * @author Shrideep Pallickara $Date$ $Revision$
 */

public class SimpleTagValueClient implements NBEventListener {

    private ClientService clientService;

    private String moduleName = "SimpleTagValueClient: ";

    private EventConsumer consumer;

    private EventProducer producer;

    private ProducerConstraints producerConstraints;


    public SimpleTagValueClient(int entityId) {
        try {
            clientService = SessionService.getClientService(entityId);
        } catch (ServiceException serEx) {
            System.out.println(serEx);
        }
    }


    public void initializeBrokerCommunications(Properties props, String commType)
        throws ServiceException {
        clientService.initializeBrokerCommunications(props, commType);
    }


    public void initializeProducerAndConsumer() throws ServiceException {
        Profile profile =
            clientService
                .createProfile(TemplateProfileAndSynopsisTypes.TAG_VALUE_PAIRS,
                               "Sports=NBA,Team=*");
        consumer = clientService.createEventConsumer(this);

        consumer.subscribeTo(profile);

        producer = clientService.createEventProducer();
        producer.setSuppressRedistributionToSource(false);

    }


    public void publishEvent(String stringMsg) throws ServiceException {
        if (stringMsg.equals("")) {
            stringMsg += System.currentTimeMillis();
        }
        producer.generateEventIdentifier(false);
        producer.setTemplateId(12345);
        producer.setDisableTimestamp(false);
        NBEvent nbEvent =
            producer
                .generateEvent(TemplateProfileAndSynopsisTypes.TAG_VALUE_PAIRS,
                               "Sports=NBA,Team=Pacers", stringMsg.getBytes());
        producer.publishEvent(nbEvent);
    }


    public void onEvent(NBEvent nbEvent) {
        System.out.println(moduleName + "Received NBEvent {"
            + nbEvent.getContentSynopsis() + "} "
            + new String(nbEvent.getContentPayload()));
    }


    public static void main(String[] args) {
        int entityId = 7007;
        if (args.length == 3) {
            entityId = Integer.parseInt(args[2]);
        }

        SimpleTagValueClient client = new SimpleTagValueClient(entityId);
        Properties props = new Properties();
        String module = "SimpleTagValueClient.main() ->";
        /** These properties pertain to setting up a TCP link */
        props.put("hostname", args[0]);
        props.put("portnum", args[1]);

        try {
            client.initializeBrokerCommunications(props, "niotcp");
            client.initializeProducerAndConsumer();

            BufferedReader commandLine =
                new BufferedReader(new InputStreamReader(System.in));
            int tracker = 0;
            while (true) {
                String s = commandLine.readLine();
                if (s == null) {
                    System.out.println(module + "String is null!!!");
                    break;
                }

                tracker++;
                client.publishEvent(s + "[" + tracker + "]");

            }
            /** end while-true */
            System.out.println(module + "exiting ");

        } catch (IOException ioe) {
            System.out.println(ioe);
        } catch (ServiceException serEx) {
            System.out.println(serEx);
        }
    }
}
